GonadoblastomaNeoplasms, Gonadal TissueSpinal Cord NeoplasmsFrasier SyndromeGonadsApudomaDysgerminomaSex Cord-Gonadal Stromal TumorsTestisGonadal Dysgenesis, MixedGonadal Dysgenesis, 46,XYOvaryTurner SyndromeBrain NeoplasmsGonadal DysgenesisNeoplasmsTumor Markers, BiologicalEpendymomaSpermatic CordLaminectomyOvarian NeoplasmsRetrospective StudiesSertoli Cell TumorTesticular NeoplasmsPrognosisChromosomes, Human, YSpinal CordMicrosurgeryFibrous Dysplasia, MonostoticKaryotypingAstrocytomaMagnetic Resonance ImagingSpinal Cord InjuriesMeningiomaNeurosurgical Procedures